Good evening everyone, and this evening we're learning more about a frightening incident at Carlisle High School! A student used a stun gun on another student! KCCI's Laura Nichols explains why parents are upset! CONCERNED PARENTS SAY THEY'RE UPSET THAT SCHOOL OFFICIALS DIDN'T NOTIFY THEM THAT A STUDENT BROUGHT A STUN GUN TO SCHOOL. It happened at the end of the day Friday in the boys locker room -- here at Carlisle High School. Two teenage boys horsing around -- when one decided to use a stun gun on the other. WE DIDN'T KNOW ANYTHING ABOUT IT UNTIL WE SAW IT ON THE NEWS...WHICH IS KIND OF ALARMING AND A LITTLE BIT SHOCKING. Parents say the school dropped the ball by not sending out an alert. But school officials say it wasn't a safety threat. IF IT WAS A SAFETY CONCERN WE WOULD HAVE NOTIFIED OUR PARENTS IN THE DISTRICT. IT WAS AN ISOLATED INCIDENT. NO FURTHER SAFETY CONCERNS WERE THERE. The stun gun was a small self defense stun gun similar to this one you can buy online. Police say it's nothing like a taser they use -- but can still hurt someone. JUST ENOUGH THAT IT'S GOING TO INCAPACINATE AN INDIVIDUAL OR AT LEAST FRIGHTEN AND INDIVIDUAL THAT THEY'RE GOING TO BACK OFF. In this case the boy was shocked but luckily was not seriously hurt. IN THE FUTURE HONESTLY I JUST HOPE THAT THEY TAKE MORE PRECAUTIONS AND SURE THAT THESE THINGS DON'T HAPPEN, AND WHEN THEY DO THAT ALL THE PARENTS ARE NOTIFIED. Authorities are still investigating -- so far no charges have been filed. Laura Nichols, KCCI 8 News, Iowa's News Leader. The Superintendent says the school is following it's policy -- but wouldn't say what disciplinary action, if any, the student will face.